Products >> Industrial RO Membrane >> Brackish Water RO Membrane

BW 30-4040 Equivalent

Product No.：TFFR-4040PROB
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Equivalent, equivalence, replacement, alternative, analog, retrofit, analogue, derivative, substitution: DuPont DOW Filmtec BW 30-4040, BW 30 4040

General Information

TFFR-4040PROB is manufactured as an equivalent, replacement, alternative, retrofit, analogue and derivative for DuPont DOW Filmtec BW 30-4040 RO membrane.

TFFR-4040PROB reverse osmosis membrane elements are developed for brackish water treatment with high performance of fouling resistance, ideal for reverse osmosis plant managers and operators dealing with brackish water with normal pre-treatment.

These reverse osmosis membrane element provides consistency, high-quality filtrate, high performance and productivity, and long service life.

Features & Advantages

Improved feed spacer to thicker channel
Optimized design, good resistance to fouling
Greater restorability after chemical cleaning
Direct and economical element replacement

Applications

Municipal sewage
Industrial wastewater
Industrial process water
Reclaimed water recycling etc.

Specifications

Configuration: Spiral wound element
Membrane Polymer: Polyamide thin-film composite

Performance

Element Part Number	Membrane Active Area ft²(m²)	Feed Spacer mil (mm)	Permeate Flow Rate* GPD(m³/d)	Stabilized Salt Rejection**	Minimum Salt Rejection
TFFR-4040PROB	85 (7.9)	34 (0.864)	2,500 (9.5)	99.7%	99.0%

Standard test conditions:

The above performance is initial(data record after 30 minutes of operation), based on the following conditions:

2,000 ppm NaCl solution

225 psi (15.5 bar) operating pressure

25°C (77°F) operating temperature

15% permeate recovery

7.5-8 pH range

*Permeate flow for individual elements may vary but will be no more than ±15%.

**Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending on feed water characteristics and operating conditions.

Element Dimensions

DuPont DOW Filmtec BW 30-4040 RO Membrane Equivalent Element Equivalent Dimensions

Size	Length L inch (mm)	Diameter D inch (mm)	Permeate tube inner diameter d inch (mm)	Permeate tube Extension L1 inch (mm)
4040	40 (1,016)	3.9 (99)	0.75 (19)	1.04 (36.5)

Operating and Cleaning Limits

Maximum Operating Pressure	600 psi (41 bar)
Maximum Operating Temperature	45°C (113°F)
Maximum Chlorine Concentration	0.1 ppm
pH Range, Continuous	2-11
pH Range, Cleaning	1-13
Maximum Feed SDI (15 mins)	5
Maximum Element Pressure Drop	15 psi (1 bar)
Maximum Feed Flow	3.6 m³/h
Minimum Ratio of Concentrate to Permeate Flow for Each Element	5:1

The limits shown above are for general applications. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane element.

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